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US 2021/0107831 A1Published application
Cement Waste Recycling Device and Method of Recycling Cement Waste
OwnerPeter Rem, Peter Berkhout +2inventors
InventorsPeter Rem, Peter Berkhout, Jaap Heijboer, Harry Fase
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Abstract
Devices and methods of recycling cement waste. A cement waste recycling device (1) comprising a heater (2) with an inlet (3) for cement waste and an outlet (4) for processed cement waste, wherein the heater (2) is configured for transporting cement waste in a cement waste transportation direction from the inlet (3) to the outlet (4) while transporting heated gas in countercurrent with the cement waste transportation direction.
Claims40
A cement waste recycling device comprising:
- a heater with an inlet for cement waste and an outlet for processed cement waste, wherein the heater is configured for transporting cement waste in a cement waste transportation direction from the inlet to the outlet while transporting heated gas in counter-current with the cement waste transportation direction, and wherein at least one screen is located between the inlet and the outlet of the heater, and wherein at least part of the screen is vibratable.
A method of recycling cement waste, the method comprising:
- contacting cement waste and heated gas with each other;
- and
- heating the cement waste to a temperature between 400° C. and 600° C.;
- causing the cement waste and the heated gas to move in opposite directions with respect to each other.
1 more element
Dependencies are inferred from the claim text.